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Can electron spin change? If so how does this happen?
physicsnewb7 said:Can electron spin change? If so how does this happen?
meopemuk said:When people talk about spin then may mean two different things. One is the absolute value of spin (the length of the vector). For the electron this value is [tex] \hbar/2[/tex], and it never changes, i.e., this is a fixed property of the electron, like its mass or charge.
Another thing is spin projection on a given axis (a vector component). This projection may be either [tex] +\hbar/2[/tex] or [tex] -\hbar/2[/tex], with probability weight assigned to each value. These probabilities may change in electron interactions, collisions, etc.
physicsnewb7 said:So the magnitude of the vector doesn't change but it's components do in a conservative way so as to keep a constant spin magnitude of h/4pi.
Vanadium 50 said:Grampa, for heaven's sake, please turn your fount of misinformation down a notch.
First, as I said before, it is incorrect to describe a single electron as paramagnetic or diamagnetic. These are properties of bulk materials, not individual electrons. Second, the only person discussing applied magnetic fields is you. Third, the terms describing the orientation of spins with respect to external fields is not para- and dia-, but rather para- and ortho-.
meopemuk said:When people talk about spin then may mean two different things. One is the absolute value of spin (the length of the vector). For the electron this value is [tex] \hbar/2[/tex], and it never changes, i.e., this is a fixed property of the electron, like its mass or charge.
Another thing is spin projection on a given axis (a vector component). This projection may be either [tex] +\hbar/2[/tex] or [tex] -\hbar/2[/tex], with probability weight assigned to each value. These probabilities may change in electron interactions, collisions, etc.
meopemuk said:One is the absolute value of spin (the length of the vector). For the electron this value is [tex] \hbar/2[/tex], and it never changes, i.e., this is a fixed property of the electron, like its mass or charge.
Matterwave said:No, the electron's spin is [itex]\frac{\hbar}{2}[/itex]
Matterwave said:3/2, 1/2, -1/2, -3/2
Yes, an electron's spin direction can be changed through various physical interactions, such as electromagnetic fields or collisions with other particles.
An electron's spin can be changed by external influences, such as interactions with other particles or exposure to magnetic fields.
Yes, an electron's spin direction can be controlled through precise manipulation of its environment, such as applying a strong magnetic field or using quantum technologies.
No, an electron's spin direction can change in either a clockwise or counterclockwise direction, depending on the specific interaction or manipulation.
Yes, it is possible to change the spin of an individual electron using advanced techniques such as spin-polarized scanning tunneling microscopy or quantum information processing.